Loom needle mechanism



G. F. HUTCHINS. EOOM NEEDLE MECHANISM. APPLICATION FILED JAN. 11. 1921.

1,415,177.; 1mm May9,192 2.

PATENT orrics.

GEORG E. nuronnvs; or

woitcnsrnn, MASSACHUSETTS, Assrenonro cnoivrrron a KNOWLES LOOM.XVORKS', A CORPORATION OF MASSACHUSETTS.

1.00M NEEDLE .MECI-IANISM.

Specification of Letters Patent.

Patented. May 9, 1922.

Application filed January 17, 1921. Serial No. 437,703.

To all whom it may concern: 7

. Be it known that I, Gnoncn F. Hurcnrns, a citizen of the UnitedStates, residing at Vv orcester, in the county of Worcester and State ofMassachusetts,-have invented a new and useful Loom Needle Mechanism, of

i which the following is a specification.

This invention relates to needle mechanism for a loom in which two ormore weft threadsare used, with picks of one kind interposed oralternating those'of another.

It is the general object of my invention to provide a construction bywhich any selected needle may be operatively connected to an actuatingrod while the other needles remain inoperative. I

With this general object in view, an important feature of my inventionrelates to the provision in a loom of a plurality of relatively shortneedles or needle points, mounted in parallel relation and movabletransversely to operative position relative to a regularly reciprocatedneedle actuating bar. A further feature of my invention relates to animproved connecting device by means of which a selected needle may bedetachably secured to the needle bar.

My invention further relates to arrangements and combinations of partswhich will be hereinafter described and more particularly pointed out inthe appended claims.

A. preferred form of my invention. is shown in the drawings, in whichFig. 1 is a front elevation ofa portion of a loom embodying myimprovements;

Fig. 2 is a sectional side elevation taken along the. line 2-2 in Fig.1;

Fig. 3 is a plan view of the connecting device; I

Fig. 4t is a front elevation, partly in section, of the parts shown inFig. 3;

Fig. 5 is a horizontal sectional View taken along the line 5-5 in Fig.2;

Fig. 6 is a sectional view showing the connection between'the needle andthe needle rod, and

Fig. 7 is a sectional detail elevation to'be described.

Referring to the drawings, I have shown a portion of the frame 10 of aloom of a usual type in which the weft threads are inserted in the warpby a positive needle motion.

A needle actuating rod 11 is secured in a,

block 12 which is mounted to slide on guideways 13 (Fig. 2) fixed to theloom frame 10. The block 12 has a pin and slot connection with a pickerstick 1 f mounted'to swing about a fixed pivot 15, and given regularoperative movements by actuating mechanism not shown.

T he front end of the rod 11 has a bearing in a stand 16 which may beconveniently mounted on the support for the guide-way 13. Two or moreshort needles or needle points 1.7 are provided with headed rearwardextensions 19 (Fig. 6), which extensions are slidably supported in atransversely extended slot 20 (Fig. 4;) in the stand 16.

A notch 21 is provided in the rear end of each extension 19 and aplurality of plungers 22 are provided to yieldingly engage the needlesin the notches 21, and thus prevent accidental displacement thereof.These plungers are mounted in the stand 16 and also in the rod 11.Springs 23 force the plungers 22 yieldingly outward, such move- -mentbeing limited by guide pins 24 in the plungers extending through slots25 in the stand 16 or rod 11.

A cross slide 26 is mounted in the stand 16 above the slot 20, saidslide being provided wit downwardly and inwardly extending portions27(Fig. 2), adapted to enter the ends of the slot 20. A bell crank 28 ismounted on a fixed pivot 29 and has a pin and slot connection with theslide 26.

The bell crank 28 may be connected by a link 30 toany suitablepattern-controlled actuating mechanism by means of which the slide- 26will be moved transversely whenever a change of filling is desired. Asthe slide is. thus moved transversely, one of the needles 17 will bemoved out of alignment with the needle rod 11 and a different needleHaving thus described my invention, the operation and utility thereof isreadily apparent.

Needles 17 are provided corresponding in number to the number ofdifferent kinds oi wet't which are to be used. These needles areyieldingly secured in parallel relation by inserting their headedrearward extensions 19 in the slot 20 of the stand 16, one of theneedles being aligned with the needle rod 11. The needles are thenshifted transversely by suitable pattern mechanism acting through thecross slide so as to bring any selected needle into operative relationwith the needle rod.

After each movement of the cross slide 26,

the needle rod is reci 'n'ocated to insert one or more picks of theselected wet't in the warp.

While a preferred form oit'my invention has been shown and described, itwill be evident that changes and modifications can be made therein bythose skilled in the art within the spirit and scope of invention as setforth in the claims and I do not wish to be otherwise limited to thedetails herein disclosed, but what I claim is l. In a loom, a pluralityof weft needles mounted for transverse movement, a reciproeating needlerod, means to move said needles relatively to said rod, and means todetachably secure a selected needle in alignment with said rod. i I

2. In a loom, a reciprocating needle rod, a plurality of weft needlesadjustably mounted for selective movement into to operative relationwith said rod, and means to move said needles transversely relatively tosaid rod to position a selected needle in the path of said rod.

3. In a 100m, a plurality of weft needles mounted for transversemovement, a needle rod and means to move and connect one needle withsaid rod and to simultaneously remove'and disconnect a second needlefrom said rod. 1 4. In a loom, a plurality of transversely movable weftneedles, a reciprocating needle rod, means tomove said needles tooperative and inoperative positions relative to said rod, and means tohold said IIGGdlQS -ylGlClingly in either position. i

5. In a loom, a plurality of wettneedles a stand in which saidneedlesare mounted for transverse movement and are supported in parallelrelation, means to yieldingly hold said needlesin such relation, aneedle rod movable toward and away from the fabric, and means toselectively move said needles and to connect a selected needle with saidrod when the latter is in its outward position.

6. In a loom, a stand, a plurality of weft needles mounted to slidetransversely in said stand, a needle rod mounted to reciprocatelongltudmally in said stand, and means to move sa1d needles transverselyto connect and disconnect said needles from, said rod.

7. In a loom, a reciprocating needle rod, a plurality of weft neddlesadjustably mounted for.,sele'ctive movement into 00% operative relationwith said rod, means to move said needlesto operative and inoperativepositions relative to said rod and means to position said rodlongitudinally during versely in said stand, a needle rod mounted toreciprocate longitudinally in said stand, and a cross slide mounted insaid stand and elfectiveto move said needles transversely to connect anddisconnect said needles from said rod.

In testimony whereof I have hereunto afiixed my signature.

.enonen rinuromus;

a plurality of vweft i I needles yieldingly mounted to'slide trans-

